Box construction.



J. A. LAFORE.

BOX CONSTRUCTION.

APPLICATION FILED'JUNE 12. I915.

1 ,21 8,872. Patentd Mar. 13, 1917.

JOHN A. LAFORE, 0F ARDMORE, PENNSYLVANIA.

BOX CONSTRUCTION.

Specification of Letters Patent,

Patented Mar. 13, 1917.

Application filed June 12, 1915. Serial No. 33,634.

To all whom it may concern:

Be it known that 1, Joint A. LAFORE, a citizen of the United States, residing 'in' Ardmore, in the county of Montgomery and State of Pennsylvania, have invented new and useful Improvements in Box Construction, of which the following is a specificatlon.

My invention relates to the construction of boxes, cartons or receptacles such as are made of cardboard, fiber board, straw board,- paste board, single or double faced air cell board, and the like, and preferably such as are collapsible into small volume for packing or shipping and easily opened up and formed into boxes.

It is the object of my invention to provide abox construction of the character referred to which is reinforced or strengthened particularly at the hinge elges or corners by recourse to reinforcing strips of paper or like material suitably applied to and cooperating with the box material.

To these ends I have provided a .box of the character hereinafter described which is an embodiment of one of the forms my invention may take.

For an illustration of one of the forms my invention may take, reference is to be had to the accompanying drawing, in which:

Figure 1' shows in plan view a slotted and creased or scored blank.

Fig. 2 is a cross sectional view, on scale, on the line 2-2 of Fig. 1.

Fig. 3 is a cross sectional view, on enlarged scale, on the line 3-3 of- Fig. 1.

Fig. 4 is a perspective view of blank opened up into a box.

The blank, shown in Fig. 1, may be formed out of a single piece or sheet of any of the materials suitable therefor, though in the example illustrated the material is double faced air cell board. The blank is grooved or scored longitudinally at a and b and transversely at c, the blank above and below each of the scores 0 being slotted, as indicated at d and 6.

These scores and slots form the blank into the box faces A, B, C and D, of which A and C may be considered the side faces, and B and D the end faces.

To these box faces are hinged, by the scorings a; and 6, top and bottom flaps, of which f and g are attached to the side A; h and i are attached to the face B; j and is are attached to the face C, and m and n are at larger tached to the face D. Along the, scoresa and e the blank is reinforced by the reinforcing strips 0 and 2 each extending, in the example illustrated, throughout the length of the blank andextending to a suitable width to both sides of the scores a and b, and scored or creased in register with the scores or creases 0a and I).

These strips 0 and 39 may be applied to the blank material before the scoring and slotting, as by gluing the same to the blank.

s shown in Fig. 2 these reinforcing strips '0 and p may be more or less completely sunken into the material of the blank. In Figs. 2 and 3 the outer face of the air cell board is indicated at g and the inner face at r, the corrugated paper or the like disposed between the sheets 9 and 1' to form the air cells being indicated at 8.

Where air cell board is used for the blank the same is crushed or pressed to receive the more or less countersunk strips 0 and p, the corrugated material a lending itself easily to'this purpose. However, when other material is used, the strips 0 and p may be forced into the blank as indicated. The blank is scored at a and b, as stated, the scoring being indicated at bin Fig. 2.

he result is that where the blank is scored or creased, as at a and b, the reinforc ing strips 0 and p strengthen the blank along the scores or creases, thereby adding materially to the ri idity and strength of the box when forme as indicated in Fi 4. p

The right hand edge of the face -D and the left hand edge of the face A are brought together after the blank has been formed, scored and slotted, and the cloth or paper strip t glued over their abutting edges to form the blank into a closed figure.

The slots d and e extend partially across the reinforcing strips 0 and p and substantially half way across the same and to or into the scores a and b.

The box blank may be closed by folding upon itself into a shipped or packed for shipment.

In opening out or forming the box the blank is opened out to bring' the side and end faces into a rectangle and then folding in the top and bottom flaps.

. What I claim is:

1. Ina collapsible box structure, integral box elements formed ofa blank of air cell board scored or creased from the inner side only to form a corner hinge or joint between double layer, and so said elements, and a reinforcing strip attached to said elements and extending along their hinge or joint on the outside thereof, and creased outwardly in register with the scoring whereby when thestructure is folded to form a box bending at the hinge or joint will not take place along the line Where the scoring has been done, but at two regions on either side of such line.

2. In a collapsible box structure, integral box elements formed of a blank of air cell board having a reinforcing strip attached to the elements and extending along the portions thereof which are to form the hinges or joints when the box structure is complete, said reinforced regions being scored or creased'from the inner side only in such manner that when the box is folded the principal bending will not take place along the lines where the scoring has been done, but at regions on either side of such lines. V

3. ,In a collapsible box structure, integral box elements formed of a blank of air cell board having a reinforcing strip attached to the elements and extending along the portions thereof which are to form the hinges or joints when the box structure is complete, said reinforced regions being scored or creased -from the inner side only in such manner that when the box is folded the principal bending willnot-take place along the lines where the scoring has been done, but at regions on either side of such lines, said reinforcing strips being countersunk in the external wall only of the air cell board.

. 4. In a collapsible box structure, integral box elements formed of a blank of air cell board having a reinforcing strip attached to the elements and extending along the portions thereof which are to form the hinges or joints when the box structure is complete, said reinforced regions being scored or creased from the inner side only in such manner that when the box is folded the principal bending will not take place along the lines where the scoring has been done, but at regions on either side of such lines, thus allowing the flaps at either'end of the box to be folded over each other without undue strain upon the portions forming the hinges. 5. In a collapsible box structure, integral box elements of air cell board scored or creased on the inner side only to form joints or hinges between said elements, and a reinforcing strip attached to said elements and extending over the hinges or joints to reinforce the same, said reinforcing strip being disposed in depressions in the outer wall of said air cell board and creased outward in register with the scoring of the inner wall of the air cell board.

6. In a collapsible box structure, integral box elements of air cell board scored or creased upon the inner side only to form joints or hinges between said elements', and a reinforcing strip attached to said elements and extending over the hinges or joints to reinforce the same, said reinforcing strip being disposed in depressions in the outer wall of said air cell board and creased outwardly in register with the score or crease of the air cell board in such manner that the principal bending will not be along lines where the scoring has taken place, but at regions on either side of said lines. I

7. I a collapsible box structure, integral box elements of air cell board scored or creased on the inside only to form a joint or hinge between said elements, and a reinforcing strip attached to said elements and extending over the hinge or joint to reinforce the same, said reinforcing strip being forced outwardly in register with the score or crease of the air cell board in such manner that when the box structure is folded the bending at the hinges may take place at either or both of two regions at either side of the scoring, so that the end flaps may be folded over each other without undue strain upon the hinges.

8. In a collapsible box structure, integral box elements of air cell board scored or creased to form a joint or hinge between said elements, and a reinforcing strip attached to said elements and extending over the hinge or joint to reinforce the same, said reinforcing strip being disposed in depressions in the-outer, wall of said air cell board.

In testimony whereof I have hereunto aflixedmy signature this 10 day of June, 1915.

JOHN A. LAFORE. 

